How do you clean colored leather sofa?

You should get a professional in to do your couch the first time so they can identify the fabric. Is it cotton, nylon, wool, etc. Cotton and wool can shrink and will eventually make a mess of shampooing your couch. If you have a nylon blend and don't have a rug shampooer with an upholstery cleaner you can rent one from most stores. "Rug Doctor" is usually a good shampooer. Instructions are usually on the tank of these rental cleaners. If you have a "Home Depot" hardware store in your area they have the best cleaners and it only costs $19.95 to rent one for the day, BUT you have to leave a $100 deposit (too many people steal them, thus the deposit.) You will get the deposit back when you take the machine back. Their products for rug and upholstery cleaning is called "ZEP" and is my favorite type of shampoo cleaner.